Amphibious Tusks

For the duration, your teeth become sharper and harder, and you grow a pair of stone-colored, spiky tusks. The tusks act as natural weapons and during your turn while you have them, you can use them to make an unarmed strike that deals 2d6 + Strength modifier piercing damage on a hit. If an attack with the tusks misses, you must succeed on a DC 12 Strength saving throw or be knocked prone by the weight of the tusks knocking you over.

At Higher Levels. If you cast this spell using a spell slot of 3rd level or higher, the piercing damage dealt by the tusks increases by 1d6 and the DC for avoiding being knocked prone by the tusk's weight increases by 1 for each spell slot above 2nd.